Aeroplane



Julys, 1928.

G. A. LUND AEROPLANE Filed sept. 29, 1927 2 Sheets-sheet l l l l i l l i July '3, 192s.

. 1,675,759 G. A. LUND l AEROPLANE 'Filed sept. 29,- 1927 2 sheets-sheet 2 Patented July 3, 1928.

UNITED STATES GUSTAV A. LUND, OF MILWAUKEE, WISCONSIN.

Annornann.

A., v y Application filed September 29, 1927. Serial No. 222,884.

This invention relates to aeroplanes and more particularly tov means for lifting the same. in the air, and it consists in the novel featuresvhereinafter described and claimed.

An objectlof the invention is to provide lifting means which utilize theresistance of the air which is encountered by the aero hplane, when moving in a forward direction by deflecting air currents inwardly toward the body or fuselage of the machine and lmpinging said currents upon lifting planes mounted at the sides of the fuselage, whereby the said'air currents are caused to assist in the lifting of the plane. A

With this' object in view, the structure includes the provision of fans atthe underside of the sustaining plane of the aeroplane, and in the vicinity of the ends thereof. These fans are provided with means for drawing in currents of air and for. deflecting the said currents of air inwardly toward the fuselage. Lifting planes are mounted at the opposite sides' of the fuselage and said currents of air areimpinged upon the surfaces of the lifting planes. Means are provided for varying the angle of inclination of the lifting planes with relation to a horizontal line so-that the aeroplane may be lifted at a desired angle'with relation to the surface of the .ground y In the accompanying drawings Figure 1 is a top plan view of the improved aeroplane, With parts thereof broken away, and parts shown in section;

Figure 2 is a vertical front elevational -view thereof;

Figure is anenlarged fragmentaryr sectional view of one' of the fans and lifting Aplanes of the aeroplane. y

As illustrated in the accompanfying drawings, the` aeroplane includes a uselage or body 1 of conventional form, having asustaining plane 2 ,disposed transversely there-` of inthe usual manner. Brackets 3 are arranged at the opposite sides of the fuselage land those brackets which are nearer the forward end of the lfuselage 1 are longer than those disposed toward the rear end of the fuselage. The brackets 3 are substantially vunder the sustaining plane 2. Lifting planes 4 are pivoted between the brackets 3 and said planes are-located one at eac-h 'in any suitable manner.

side of the fuselage 1. Rods 5 are connected with the upper portions of the lifting planes 4 and enter the body of the fuselage as best shown inl Figure 1 of the drawings, and may be used for tilting thc planes 4 in the brackets whereby the angle of inclination of the said planes with relation to the axis of the fuselage and a horizontal line may be varied.

Fan casings 6 are carried at the under side of the. sustaining plane 2 in the vicinity of the ends thereof, and fan blades 7 are mounted for revolution in said casing. The

yblades 7 are mounted upon shafts 8, which are journaled in the `sides of the casings,- and which are provided at their 'rear ends with bevelled pinions 9 which mesh with similar pinions 10, mounted upon a shaft 11 which is disposed transversely of the fuselage and which may be rotated by `an engine (not shown) carried in the fuselage The casings 6 are provided at their forward sides with centrally located air intake openings 12 and the said casings are provided at their inner'Y sides and at their edges with discharge out'- lets 13 which are directed toward the outer surfaces of the lifting planes 4 and spaced therefrom. I 4 t It will be seen that when the shaft 11 isrotated rotary movement is transmitted to .the shafts 8 which in turn carry the blades 7 aroundin the casings 6, and the said blades draw currents of air into the casings through the inlet openings 12 and direct the said currents of air through the discharge outlets 13 toward the lifting planes 4. i As the said currents of air. impinge upon the outer surfaces of the planes 4, they'have a tendency to lift the aeroplanevertically. By varying the angle of the lifting planes, the angle of elevation of the aeroplane may be varied. It is obvious that this lifting action may be caused to take place when the aeroplane is in flight or when it is being wheeled or moved over the. surface of the field. y 1

From the foregoing description of the construction of my improved device, it will be seen that I have provided a simple, inexpensive and efficient means for carrying out the objects of -the invention and 'while I have particularly described the elements best adapted to perform the functions set.; forth,

it is obvious that various changes in form, proportion and in the niinor details of construction niavxv be resorted to without departing frein the spirit orsacriiicing any of the principles of the invention.

Haif'iiig described the invention, what is claimed is:

l. An aeroplane comprising a fuselage, a sustaining plane mounted thereon, lifting planes carried at the sides of the fuselage and disposed below the sustaining plane, fan easings carried at the under side of the sustaining plane and located at opposite sides of the fuselage, said fan casings havingl inlet openings disposed toward the forward edge of the sustaining plane and discharge outlets disposed inwardly toward the lifting planes, fan blades mounted for rotation in the easiiigs and means foi' rotating the blades.

2. An aeroplane' Comprising a fuselage having a sustaining plane disposed transversely over the top thereof, lifting planes carried by the fuselage below the sustaining plane and disposed at opposite sides of the fuselage and fans carried by the sustaining plane and disposed at opposite sides of the fuselage, and adapted to impinge currents of air upon the lifting planes. I

3. An aeroplane comprising a fuselage, a sustaining plane mounted thereon, lifting planes'carried by the fuselage and'arranged below the sustaining plane at opposite sides of the fuselage, means for xf'arying the angle of inclination of the lifting planes and fans carried by the sustaining plane and disposed at opposite sides of the fuselage and arranged to discharge currents of air inwardlyL upon the lifting planes. i

4'. An aeroplane comprising a fuselage; a sustaining 'plane mounted, thereon, lifting planes carried by the fuselage at the opposite sides thereof and disposed at an angle with relation to the axis thereof, means for varying the angle of inclination ot' the lifting planes and fans Carried under the end p0rtions of the sustaining planevand disposed at opposite sides of the fuselage and ada ted to direct currents of air inwardly upon t e lifting planes.

In testimony whereof I ailix niy signature.

GUSTAV A. LND. 

